Lappet-loom.



No. 843,178. y PATENTED FEB. 5, 1907. W. A. ROBINSON. LAPPBT LOOM.lAPPLICATION FILED MAYS, 1904.

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No. 843,178. MTL'ENTBD PEB. 5, 1907.

W. A. ROBINSON.

LAPPET LOOM.

APPLIOATION FILED MAY 9, 1904.. v

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W. A. ROBINSON.

LAPPBT LOOM. APPLICATION FILED MAY 9, 1904.

STATES ATENE OFFICE,

NITE il WILLIAM A. ROBINSON, OF WOONSOCKET, RI-IODE ISLAND,

MANVILLE COMPANY, OF PROVIDENCE, RHODE ISLAND, TION OF NEW JERSEY.

Assiekon To LAPPET-LOONL Specification of Letters :Patent` Serial NoK207.000.

No. 843,178. Patented Fe; 5, 1907.

Application filed May 9. 1904.

irarily in providing a spiral pattern-surface for controlling thevertical n oven' ents of the thereby controlling tlte be- To all whom, tmay concern:

Be it known that I, WILLIAM A. RoiN- l of Woonsocket, county of lneedle-bar, and Providence, and State of Rhode Island, have i ginningand end of a lappet invented certain new and useful InA provecharacterreferred to. ments in Lappet-Loonis; and I do hereby If desired, thelappet'design as a whole declare the following specification, taken inmay be conposed of separate designs connection with the accompanyingdrawings, \n`atclied together to conpose the conf lete l SON, of thecity forming a part of the same, to be a full, clear, design. Thus, forexanf ple, in a han kerand exact description thereof. cliief the lappetdesign as a whole ir ay con- The object of the present invention is tosist of a border extending parallel with the produce a design coniposedof individual four sides of tlze handkerclief, andv in such lappetpatterns or figures, which design recase tle side portions of tl is border n' ay conquires for its production the ernployir ent of stitute onelappet design to be controlled by a niuch longer repeat than hasheretofore one pattern-surface, and the cross portions of been possibleor practicable. By the present the border nay constitute anotlier lappetinvention such lappet design ni ay be of such design to be controlled byanotl er patternsize or length that a single design rr ay consurface,the side portions and the cross porstitute a complete article-as, forinstance, tions referred to being n atclied to n ake the a doily or ahandkerchief. coirplete border, which border in this case In practice Ihave err ployed the invention constitutes tlte conplete synin etricaldesign for the production of handkerchiefs provid ed l for thehandkerchief. In this latter case the with a lappet design, whichhandkercliefs tin es for throwing the two needle-bars into were fourteeninches in length and in which and out of operationwill the lappet designor repeat is likewise fourthe constituent designs,and consequently tlteteen inches long. In weaving these handtwo needle-bars required for tleproduction kerchiefs successivelyT in a continuous fabric of the twoconstituent designs n ust be the lappet design or repeat nay beconvencontrolled by separate and independent iently neasured from thebeginning of tle l operating irechanisin, because one of tlLelappet-weaving in one handkerchief to the l needle-bars will require tobe held out of beginning of the lappet-weaving of the saire operation attiines when the other needle-bar design in the next handkerchief, thedistance is operating. between which points will likewise neces- Afurther feature of the invention theresarily be fourteen inches. Assuning, therefore consists in providing two pattern-surfore, that thefabric is to be woven-say, sixty-four picks to the inch-the lappetdesign or repeat for an article fourteen inclr` es long would in suchcase require to be eight hundred and ninety-six picks in length. Itwould be obviously in" possible to provide for a lappet design or repeatof such length by the ordinary pattern-wheel, and it would likewise beiirpracticable to provide for tl`e saire by a pattern-chain, wl ich insuch case would require to be con posed of eight hundred and ninety-sixlinks.

The object of the present invention is to provide a lappet-pattern orcontrolling nV echanisrn adapted to provide for a lappet design orrepeat of eXtren'elength-aafor instance, the weaving of the spaceintermediate bea repeat con^posed of as niany or even a tween twoconsecutive lappet-figures. As a greater nuniber of picks than thatabove i result of this arrangement the entire periphnientioned. J ery ofthe pattern-wheel which controls the To that end the invention consistspriweaving of the lappet figure may be devoted faces, one to control oneof the constituent lappet` designs and the other to control the otherconstituent lappet design.

A f urther feature of invention consists in trolling the lateralinovenients'of the needlebar and an independently-operatedpatternsurface for controlling the vertical nievenients of saidneedle-bar. By this arrangenient the needle-b ar in ay be continuouslyreciprocated laterally, and it therefore becomes unnecessary to devoteany portion of the periphery of the pattern-wheel which controls theweaving of the lappet VI'gure to hold the needle-bar in a fixed lateralposition during A CORPORA- design of the vary in the case of theemployment of a pattern-surface for con- X IOO to such figure, and thusthe projectionsfand depressions on V the periphery of said wheel may bespaced farther apart than would be possible if a portion of saidperiphery had to be devoted to the space between two .adjacent figures.Thus, for example, suppose that the lappet figure occupies forty-fourpicks and that this is followed by forty-four picks of plain weaving, ifthe pattern-wheel which controls the up-and-down movements of theneedle-bars is operated independently of the pattern-wheel whichcontrols the weaving of the lappet ligure, the patternwheel for thelappet figure may complete one revolution in forty-four steps, at theend of which revolution the needlebars may be locked out of operation,and the pattern-wheel which controls the weaving of the figure may thenmake another revolution, which will cause the continued lateral'reciprocation of the needle-bars, which, however, will be inoperativeto effect any lappetweaving, because the needle-bars are during thissecond revolution of the pattern-wheel locked out of operation.

Referring to the drawings, Figure 1 is an end View of a lappet-loomembodying the invention.

Fig. 2 is a rear view of the lay and its adjuncts, with the frame brokenaway. Fig. 3 is a section on the line w w of Fig. 2. Fig. 4 is a sectionthrough one of the swords of the lay on the line u u of Fig. 2. Fig. 5is a section on the line o o of Fig. 4. Fig. 6 is a plan view on anenlarged scale of the spiral pattern-head. Fig. 7 is a section on theline a: of Fig. 6. Fig. 8 is a section on the line y y of Fig. 6. Fig. 9is a section on the line z z of Fig. 6. Fig. 10 is a section on the linez z of Fig. 1 on an enlarged scale. Figs. 11, 12, and 13 are details.Fig. 14 represents two handkerchiefs as woven successively in acontinuous fabric, each of said handkerchiefs embodying a lappet designin the form of a border composed of individual lappet figures in theform of spots. Figs. 15 and 16 are developments on a larger scale of thetwo spiral surfaces for controlling the two needlebars employed in theproduction of one of the two lappet designs or repeats shown in Fig. 14,said Figs. 15 and 16 being twice the scale of Fig 14.

A represents the'frame of the loom, B the lay, and C the swords of thelay. Mounted in the lay are two needle-bars D D, arranged toreciprocate. laterally and also to have up anddown movements impartedthereto. The means for giving the desired lateral movements to the twoneedle-bars are the same in each case, and a description of the themeans for giving such lateral movements to one of the needle-bars willbe suflicient. The needle-bar projects laterally through the brackets a,secured tc the upper ends of the swords. To one end of the needle-bar issecured the spring l). the other end of said spring being attached to astandard secured at or near one end of the lay. Attached to the oppositeend of the needle-bar is a cord c, which passes around a pulley c',mounted upon the opposite end of the lay. Said cord c passes down arounda pulley near the iloor, (not shown in the drawings,) and thence upwardand is connected to the free end of the lever E, which lever is pivotedat its other end to abracket E', secured to the frame of the loom. Thelever E is provided with a projection or roll d, adapted to ride uponthe surface of the pattern-wheel F, which is supported for rotation onthe bracket F', secured to the frame. The periphery of the pattern-wheelis provided with a series of projections and depressions correspondingto the pattern of the lappet figure to be produced, and saidpattern-wheel is to be rotated one step for each pick by any suitablemechanism not necessary to be described. When the roll d is upon one ofthe projections of the pattern-wheel F, the needle-bar will be pulled tothe right in Fig. 2J and when the roll d is in one of the depressions onsaid pattern-wheel the needle-bar will be pulled to the left by thespring b.

The mechanism for giving the required upand-down-movements to theneedle-bars is as follows: Each needle-bar is mounted in passes throughthe lay and is guided at its .upper end in a bracket a and is guided atits lower end in a bracket projecting from the sword C. The needle-bar,with its connected lifting-rods e e, will fall by gravity to its lowestposition when permitted to do so, and it is o'nly necessary to providemeans for lifting said needle-bar at the desired times. The downwardmovement of the needle-bar is for the purposeV 'of carrying thelappetthreads into and to the bottom of the shed and so that thevshuttle will pass above said lappet-threads and so that they will bewoven into the fabric, while the upward movement of the needle-bar isfor the purpose of lifting the lappet-threads above the shed and so thatthey will not be woven into the fabric and also so that the needle-barmay be moved laterally to change the position of the needles. As the-movement of the lay is timed with the opening of the shed, the layswinging backward as the shed is opened, it is convenient to control thevertical movements of the needle-bar from the lay. Adjustably secured tothe lifting-rod e is a collar f. Arranged to slide on said rod c isanother collar g. To this collar g is pivotally secured one end of aconnecting-rod 71 the other end of which is pivotally connected to abracket i, secured to the cross-rod j of the IOO loom. Vith thisconstruction when the lay is in its rearward position, as shown in Fig.3, the lifting-rod e and the needle-bar D carried therebyjwill be intheir lower position. When now the lay swings torward, the collar g willbe'caused by the action of the connecting-rod h to move upward, and byengagement with the collarj', secured to the liftingrod e, will serve tolift said rod, and thereby lift the needle-bar D. It will be understoodthat there is a similar construction at each end of the loom.

The construction of the mechanism 'for giving the up-and-down movementsto the needle-bars where two such needle-bars are employed will next bedescribed. Referring to Fig. 3, it will be seen that there is a secondlifting-rod e2, arranged just in 'front ol the lifting-rod e, saidlifting-rod e2 being likewise provided with an enlargement e, which ismortised to receive the second needle-bar D. Adjustably secured to thelifting-rod` e2 is a collar f In this case the sliding collar g is whatmay be termed a "double"` colla-r or yoke, being a block having twoholes extend.- ing therethrough and through one of which the lifting-rode passes and through the other of which the lifting-rod e2 passes. Withthis construction, if nothing further were provided, the two needle-barsD D would move upward and downward together and would so move at eachbeat of the lay. It it necessary, however, when the lappet-threads arenot to be woven into the 'fabric that the needle-bars should be held intheir upper position, and as it may happen that the lappetthreadscontrolled by one of the needle-bars are to be woven into the fabric ata time when the lappet-threads controlled by the other needle-bar arenot to be woven in it is desirable to provide means whereby eachneedle-bar may be held in its upper or inoperative position independentof the other.

ln the construction shown in the drawings this is accomplished by meansol latches Zt Zt'. Each of the lifting-rods e e of the needle-ba D isprovided with a projection Z, and each of 't he lifting-rods e2 ol theneedle-bar D is provided with a corresponding projection Z. There aretwo latches 757s, one near each end of the loom, one of said latchesbeing adapted to be moved into and out of the path of the projection Zon one of the lifting-rods c as said lifting-rod is raised or loweredand the other latch k being likewise adapted to be moved into orv out olthe path ofthe corresponding projection Z on the companion lifting-rode. Two other similar latches ZC Zt, one located near each end of theloom, are likewise adapted to be moved into or out of the path of theprojections'Z Z on the other pair of lifting-rods e2 e2, which controlthe vertical position of the other needle-bar D.

Referring `first to the construction at the right in Fig. 2 and likewiseshown in Figs. 3

and 4, mis a bracket secured to the sword C. This bracket is providedwith a bearing m, in which is mounted a rock-shaft The latch Zrconstitutes one arm of a three-armed lever provided with a hub, whichhub is loosely mounted on the rock-shaft mi. To a second arm Z. ol" thisthree-armed lever a connecting cord or wire 7c3 is attached, which leadsto a lever controlled by the patternsurface hereinafter described. Thethird arm Zr" of said three-armed lever projects downward and has aconnecting-wire Zci attached thereto.4 Secured to the rock-shaft m2 is atwo-armed lever, to one arm ZC of which a connecting-wire Zcl isattached, the other end 'of which wire is connected to a pattern-levercontrolled by another patternsurface to be hereinafter described7 and tothe other arm Zus o'lE which a connecting-cord Zr is attached. Securedto the opposite end oi the rock-shaft m2 is a latch Zc, which engagesthe projection Z upon the lifting-rod e2. i Secured to the sword C, atthe opposite end ofv the loom, is a similar bracket m3, in which ismounted a rock-shaft fm, upon which the latches Zr Zz" at that end ofthe loom are similarly mounted. Each of the latches 7i' 7c at thislatter end ol the loom constitutes one arm ol a two-armed level'. Theopposite arm of the lever 7i' has the connecting cord or wire Zr?)attached thereto, while the other arm ol the lever Zr has the connectingcord or wire Zr connected thereto. The construction is such that the twolatches llc Zc will be caused to simultaneously move toward or from eachother, and the two latches Zr ZC will likewise be caused to movesimultaneously toward or from each other. As the latches Zr Zr arecontrolled by one pattern-surface, while the latches Zr Zz" arecontrolled by another and independent pattern-surface, it is evidentthat the latches Zi: Zt will be caused to move toward or from each otherwithout moving or disturbing the position of the latches Zt" Zit.

It is obvious that the sliding collar g, which surrounds both of thelifting-rods e e2, is and must be moved up and down continuously at eachto-and-'l'ro movement of the lay by reason of the connecting-rod Zt,which is connected at one end to the frame of the loom. It is alsoobvious that as long as the latches Zc /c are held out of the'path ofthe projections Z Z and the latches Zr Zr are likewise held out of thepath of the projections Z Z, both of the needle-bars D D will becontinuously raised and lowered by the engagement of the sliding collarg 'with the iixed collars f j", secured to the lifting-rods e e2,respectively. It now it be desired to hold the needle-bar D, forinstance, in its upper or `inoperative position and at the same time tohave the needle-)bar D continue its up-anddown movements, all that isnecessary to sesure lthis result is to pullfthe cord 7c3, which IIO willserve to rock both of the latches Zr Zc and move the free ends of saidlatches into the paths of the projections Z Z, this movement of thelatches being eected at a time when the needle-bar is at or near its uper position and so that the free ends of said atches may thus be movedinto the path of the projections Z Z and below the same-that is, at atime when the lay is at or near its forward position. When now the layswings backward and the sliding collar g is thereby moved downward, thelifting-rods e e will be prevented from moving downward by theimpingement of the projections Z Z against the latches Zc Zr, whichlatches will thereby serve to prevent the downward movement of theneedle-bar D and will hold said needlebar in its upper or inoperativeposition. As, however, there is nothing to prevent the downward movementof the needle-bar D', said needle-bar will descend with the back- Wardmovement of the lay, being lowered or allowed to fall by the downwardmovement of the sliding collar g. It will be obvious that the needle-barD will continue to be held in its upper or inoperative position as longas the latches Zc 7c remain in position below the projections Z Z anduntil they are withdrawn from the path of said projections. It ispreferred to have the latches hold the needle-bar in a position somewhatbelow its eXtreme upper position, as thereby the latches can be readilymoved into the path of the projections Z Z when the lay is forward andthe needle-bar in its upper position, the projections Z Z at this timebeing sufficiently above the upper ends of said latches, so as not tointerfere with the movement of said latches or to require any specialforce to move said latches into a position below said projections. Withthis construction also the projections will be lifted slightly above theupper ends of the latches atthe time when the latches are to bewithdrawn, and consequently no special force will be required towithdraw the latches. If now it be desired to hold the needle-bar Dl inits upper or inoperative position and to allow the needlebar D tocontinue its up-and-down movements, this may be done by withdrawing thelatches Zr Ze out of the path of the projections Z Z and moving thelatches Zc Ze into the path of the projections Z Zl of the lifting-rodse2 e2 of the needle-bar D. lhen this has been done, the needle-barD willbe prevented from falling as the sliding collar g moves downward, whilethe needle-bar D will be permitted to follow down as the sliding collarg moves downward under the backward movement of the lay.

With the above construction it will be seen that both of the needle-barsD D may be permitted to operate to insert the lappetthreads in thefabric, or both of said needlebars may be held in their upper orinoperasfiaivs tive position, or either one or the other of saidneedle-bars may be held in its upper or inoperative position while theremaining needle-bar is permitted to continue its operative up-and-downmovements. In other words, either one of said needle-bars may be lockedout at will. So far as known, this is a result which has neverheretofore been accomplished. As will be seen, this is a matter of greatadvantage, as it enables either one of two needle-bars to be employedfor the production of lappet figures with spaces between said figuresand greatly increases the variety of figures which can thus be producedwith the employment of two needle-bars. The connecting-wires 7c3 Z127,which serve to operate the latches Zc Zc and Ze Zc,respectively, may becontrolled by any suitable pattern mechanism constructed to produce apull upon said wires when the latches are to be moved into the path ofthe projections on the lifting-rods, and which will release said latchesat the proper times.

In the construction shown in the drawings, each of the connecting-wires.7c3 k7 is operated or controlled by a convolute or spiralpattern-surface, which constitutes another feature of the presentinvention and which will now be described'.

G represents the pattern-head for controlling the up-and-down movementsof the needle-bars G GC Said pattern-head is mounted on an arbor G',secured at one end to the bracket G2, projecting from the frame of theloom and preferably supported at its opposite end by a standard G3,secured to the floor at a short distance from one end of the loom.Mounted loosely on the arbor G is a flanged sleeve G4, upon which ismounted a drum G5, which said drum is secured to the sleeve G4 by boltsg and so that said drum and sleeve will rotate together. The drum G5 isprovided at one end with a ratchetwheel g2 for intermittently rotatingthe same, which ratchet-wheel may be formed integral with said drum ormay be formed separately and secured to the drum, as shown in thedrawings. Mounted upon the drum G5 are a series of disks g3, which areclamped in position between an annular flange gr4 at or near one end ofthe drum and a clamping-ring g5, which is held in position by theclamp-screws g, which take into the opposite end of the drum. Each ofthe disks g3 is provided with a body portion and with a projectingportion ,07, which is in the form of a spiral. Preferably the projectingportion g7 of each disk consists of a complete convolution, as shown inFig. 8, which convolution begins and ends with an abrupt shoulder, asindicated at g8. With this construction when a series of these disks aremounted upon a common aXis and clamped together the projectingportionsg7 will interlock with each other, the abrupt shoulder ys ofA one diskabutting IOO against the corresponding shoulder of the next disk and sothat the convolution on one disk will be a continuation of theconvolution on the adjoining disk.

The periphery of each disk, or the projecting portion g7 thereof, isprovided with Y Y projections and depressions to constitute the .ratchetat each pick of the loom.

pattern-surface, andl by reasonof the spiral or convolute constructionreferred to the pattern-surface will extend from one disk to the nextand may be increased in extent by simply increasing the number of disksemployed. Each disk will provide a pattern-surface for as many picks asthere are teeth in the ratchet g2. Assuming said ratchet to be providedwith eighty teeth, for instance, a series of six disks ill piovide apattern-surface for four hundred and eighty picks, if the ratchet beadvanced one tooth at each pick of the loom, as it may be by operatingthe pawl which actuates said In the arrangement shown, however, the pawlH, `which serves to operate the ratchet g2, is actuated by a connectionwith thecani-shaft which rotates once at every two picks, and with thisconstruction a pattern-su: face formed by a series of six disks, asshown, will with an eighty-tooth ratchet serve to control the operationof the needle-bars for nine hundred and sixty picks, and will thusprovide for a design or repeat of that length.

In the construction shown, in which two needle-bars are employed, thereare two of these spiral pattern-surfaces, one for each needle-bar, eachcomposed of a series of six disks, as shown in Figs. 6 and 10, both ofwhich series of disks are mounted upon the same drum G5.- spacing-collarg9 may be employed, as shown in Fig. 10.

Pivoted to swing about the axis of the pattern-head G is a lever I,which carries the pawl I-I, which engages the ratchet g2 to interemittently rotate the pattern-head. A connecting-rod J connects the leverI with a crank K on the cam-shaft K. Vith this construction, as isobvious, the pawl H will be caused at each revolution of the cam-sliaftK to advance the pattern-head G one tooth of the ratchet g2.

Pivoted upon a cross-bar L2 are two pattern-levers L L, one of whichoverlies one of the two spiral pattern-surfaces shown in Fig. 10 and theother of 'which overlies the other spiral pattern-surface there shown.To the free end of the lever L the connecting-wire 7c3 is attached,while to the free end of thelever L the end of the connecting-c ord k7is attached. Each of these levers is preferably provided with adolly-roll to ride on the pattern-surface.

In order to enable the dolly-roll of the pattern-lever to follow thespiral pattern-surface, it is necessary that either the pattern-head Ifdesired, an intermediate shall be moved longitudinally beneath thepattern-lever or that the pattern-lever shall be moved longitudinallyalong the patternhead. It has been found more convenient to give thislongitudinal movement to the pattern-head rather than to the patte:n-lever, and this is Athe cfonstzuction shonn in the dran ings.Secaireci to the bra' ket G2 is an overhanging bracket M, to whiI h issecured a depending fo. k M, the faked end of which straddlcs the p1ojecting po'- tion g7 of the pattern-disk. The patteinhead G as a wholeis adapted to move longitudin. -lly on its supporting-stud G.Consequcnily as the fo;kecl p; ojey tion M` is -stations.' y and Yigidthe ievolulicn of the patte; n-head ill i y reason of the spi "..l fo'mation of the p1 ojec ting poliions (,7 of the disks g3 cause saidpatte. n-head to be gradually moved lcngth'nise along the supportingstud G and so that as said patteln-head revolves the, dolly-roll on thepatteirlever n ill be caused to travel from one disk to the next, andthus to follow the spiral pattern-surface. It 'n ill be obvious that asthe pattern-head is intermittently rotated by its pavl and ratchet thepattei n`levers L L n ill under the action of their respective spiralpatternsurfac es be caused to operate the connectingwires k3 767, so asto throw the needle-bars D D, one or both, into and out of operation atthe desired times, depending upon the form of the respective spiralpattern-surfaces.

In employing a spiral pattern-surface such as above described it isnecessary when the roll of the pattern-lever lhas reached the end of thepattern-surface, either by the longitudinal movement of the pattern-headde- IOO scribed or by a corresponding longitudinal movement of thepattern-lever with relation to the pattern-head, that the parts shall bereturned to their original position in order that the lever may be againcaused to travel over the pattern-surface. In other words, as thepattern-surface in this case is not endless means must be provided forreturning the parts to their original position. While this may beaccomplished in various ways, itis preferred to thus return the parts totheir original position. by a reverse rotation of the pattern-head, andthus to utilize the return movement for the production of a duplic ationof the design or repeat. In other words, the travel of the pattern-leverfrom one end of the spiral pattern-surface to the other vwhile thepatlternehead is revolving in one direction may be used to' produce agiven design, and the travel of the pattern-lever along thepattern-su"face in the reverse direction ty the revolution of thepattern-head in the opposite direction may serve to produc e the nextrepetition of the design in the continued length of the fabric. Thus aspiral pattern-surface composed of six disks, as shown, which willcontrol the operationof the needle-bars for IIO nine hundred and sixtypicks, as above stated, may bya mere reversal of the direction ofrevolution of the pattern-head be caused to control the operation ofsaid needle-bars for one thousand nine hundred and twenty picks. Ifdesired, instead of having the revolution ofthe spiral pattern-surfaceinone direction control the needle-bars for the production of a completedesign it may serve to control said needle-bars for the production ofonehalf of the proposed design measured lengthwise of the fabric, andthe completion of said designV may be controlled by the revolution ofthe pattern-head in the reverse direction. By this arrangement a spiralpattern-surface composed of six disks, as shown, may with aneighty-tooth ratchet serve to-control a lappet design or repeat onethousand nine hundred and twenty picks in length.

The means employed for producing the reverse rotation of thepattern-head G in the construction shown is as follows: The pawlH-instead of being a single pawl and rigidly secured to the lever I is adouble pawl provided with two engaging fingers h Z and is pivoted tosaid lever I at i. W hen the pattern-head is to be rotated in onedirection, 4 the finger 7M is thrown into engagement with the ratchetg2, as shown in Fig. 9. l/Vhen the pattern-lever has reached the end ofthe spiral pattern-surface and the direction of rotation of thepattern-head is to be changed, the pawl H is turned upon its pivot so asto throw the finger L/ out of engagement with the ratchet g2 and thefinger h2 into engagement with said ratchet. This is accomplished by thefollowing means: Mounted upon the drum G5 adjacent to the last disk g3of the pattern-surface is another disk h3, to which is vsecured aprojection h4. p Preferably this disk Zta is constructed the same as thedisks g3, with a projection in the form of a spiral terminating in`abrupt shoulders and so that said disk h3 may be interlocked with thelast disk g3 and fitted closely thereto. This construction, however, isnot necessary, and said disk h3 may be a plain disk. Vhen the disk [L3is formed in the manner shown, it may, if desired, be utilized as acontinuation of the pattern-surface for the greater portion of itsperiphery and would thus serve to extend the pattern-surface that much.

Secured to the pawl H 1s a sleeve Zr", pro- `jecting at right anglesfrom the pawl, which sleeve surrounds the stud i', secured to orprojecting from the lever Lwhich said stud i constitutes the pivot forsaid pawl. Surrounding the sleeve h5 is another sleeve ZL, keyed to thesleeve h5, so that rotary movement imparted to said sleeve Zt willbetransmitted to the sleeve h5 and consequently to the pawl H, while atthe same time the sleeve h5 may move longitudinally through said sleeveh6. Secured to the bracket G2 is a bracket N, the free end of which isbent downward and provided with a forked end N, which forked end N isadapted to enter an annular groove formed in a projecting hub ZN,formedon the sleeve h6, as shown in Figs. 10 and 13. By thisconstruction said sleeve ZL will be held against lengthwise movement,while the sleeve h5 and the pawl H will be permitted to travellengthwise with the pattern-head G. Adjustably secured to the sleeve 712are two collars Z Zz?, which are held in their adjusted position on saidsleeve by means of set-screws hw hu. By loosening the set-screws h1 ZLthe collars 77,8 he may be adjusted lengthwise on the sleeve h and mayalso be adjusted axially thereon. The collar hs is provided with aprojection 7h12, and the collar ZL is provided with a projection ZL. Asshown, these projections h1z h are in the form of screws or bolts andmay thus be adj usted toward or from the pattern-head.

The tail of the pawl H is provided with a V-shaped projection Zt,adapted to be engaged by a V-shaped spring-pressed plunger i2, slidablymounted at or near the lever I. The V-shaped plunger is mounted in acasing i, secured to vthe lever l, provided with a screw-cap it, throughwhich the reduced end i5 of the plunger projects. The spiral spring iabuts at one end against a shoulder formed on the plunger and at theother end against the screw-cap it. Each of the pattern-levers L L' ispreferably provided with projections Z2 Z2, arranged to straddle theprojecting portion 97 of the disk g3, as shown in Fig. l2. Theseprojections Z2 Z`/l serve to prevent any accidental displacement of thepattern-lever and to retain it in proper position with relation to thespiral pattern-surface as it travels along the same.

The operation of the mechanism above described for effecting thereversal of the pattern-head is as follows: Assuming the pattern-leverL, for instance, to be in position on Vthe first disk to the left inFig. 10, the pattern-head G will be rotated step by step by the actionof the pawl H as said pawl is oscillated by the rotation of thecam-shaft K. As the pattern-head is thus rotated it will be caused totravel lengthwise on its supportingstud g, as above explained. Thislongitudinal movement of the pattern-head will be accompanied by acorresponding longitudinal movement of the lever l., the pawl H, and thesleeve he. The said longitudinal movement of the pattern-head willlikewise serve to bring the projection 7b4 on the disk h3 in line withthe projection 7tlg on the sleeve h and so that upon the next revolutionof the pattern-head saidprojection h4 will come against the projectionhw, and thereby impart al rocking movement to the sleeve ILS, andconsequently to the sleeve h5 and the pawl H. This rocking movement ofthe pawl H will serve to turn said pawl upon its pivot f, and thus throwthe finger Zt of said pawl out of engagement with the ratchet g2 and tothrow the finger h2 into engagement with said ratchet. As the pawl H isrocked it will serve to depress the springressed plunger 2, the V-shapedend of whic i, acting'in cooperation with the \/-shaped projection 71"*on the pawl, will serve to quickly throw the pawl into its oppositeposition.V lith the finger zfZ of the pawl in engagement with theratchet said ratchet and the pattern-head secured thereto will of coursebe rotated step by step in the reverse direction.

`When the pattern-head has been moved lengthwise back to its originalposition and so as to bring the pattern-lever into its original positionwith relation to the pattern-surface, it is necessary, ofcourse, thatthe pawl H shall be again rocked and the pattern-head again rotated inits original direction. This is effected by means of a projection on adisk j', which projection when the patternhead has been returned to itsoriginal position 'longitudinally will be brought in line with theprojection 7L on the sleeve lt, and the rotation of the pattern-headwill then cause said sleeve lt, together with the sleeve lt and the pawlH, to be rocked in the opposite direction.

ln order to hold the pattern-head G in the position to which it is movedby the pawl ll, a friction-brake N2 is employed, as shown in Figs. 6 and9, said brake being in the form of a friction-strap, which isconvenientlyT supported in place by having the two ends of the strapcomposing said friction-brake arranged to straddle the rod L`-, on which-the levers L L are pivoted, the ends of said frictionstrap beingconnected together by cross-bolts nf n2, and by means of which thetension of said friction-brake may be adjusted.

Referring to Fig. lll, which shows two handkerchicfs as successivelyformed in a continuous fabric, each of said handkerehiefs is shown asprovided with a lappet design in the form of a border composed ofindividual lappet figures in the form of spots. ln the formation of theborder or design there shown the side portions of the border, com'-posed of the eleven lappet figures or spots n, are produced under thecontrol of one of the needle-barswas, for instance, the needle-barD-while the cross portions of said border, composed of the nine lappetfigures or spots o are formed under the control of the otherneedle-bar-as, for instance, D. The operation 'of the needle-bars in theformation of the lappet design shown is as follows: Assuming that'thecomplete design or lappet begins at a point midway between two adjacenthandkerchiefs and terminates at a point midway between the next twoadjacent handkerchiefs, both needle-bars D D will of course at thebeginning of the design or repeat be out of operation, and thepattern-surfaces will be constructed to hold the needle-bars in theirupper or inoperative position, as shown in Figs.' 15 and 16. After therequired length of the plain weaving has been completed both needle-barsD D will be unlocked and thrown into operation and will be continued inoperation while the lappet figures o, composing the cross portion of'theborder, and the lirst two lappet figuresr/t of the side portionsV ofAthe border 'are -being formed, .said lappet figures o, as abovestated`being formed under the control of the 1ie`edle bar D and said figures nbeingl formed under the control of the needle-bar D. Then now the crossportion of the border hasl been completed, both needle-bars will belocked out of operation, as'indicated in the developments of thejntttern-surface shown in Figs. 1.5 and 16. The needle-bar D willcontinue to be held out of operation until the time arrives to producethe lappet figures 0 in the other cross portion of the border; but theneedle-bar D will be intermittently thrown into and out of operation toproduce the successive lappet-'ligures n, composing the side portions ofthe border, until the point is reached where the other cross portion ofthe border is to be formed, when both .needle-bars will be thrownintooperation to produce the end figures or spots a of the side portionsof the border and the figures or spots o, compos ing the remaining crossportion of the border'. When these lappet figures have been completed,both needle-bars will be thrown ont of operation and will 'be held outof operation during the remainder of the design or repeat, which will bethe dividing-line between the handkerchief O and the adjacenthandkerchief O, at which point the direction of rotation of thepattern-surface is to be reversed, as above explained, and so that theadjacent handkerchief O will be woven in the same manner during therevolution of the patternsurface in the reverse direction.

As will be seen, the mechanism above described not only enables eitherone of the two needle-bars to be locked or held out of operation atwill, but it enables a complete article to be woven or producedembodying a lappet design or repeat equal in extent to the extent of thearticle itself, the production of said lappet design or repeat and ofthe entire article being thus controlled by one or more pattern-surfzweseach of which controls the production of the complete article frombeginning to end. It will be further seen that when two needle-bars andtwo pattern-surfaces are employed the two designs controlled by saidpattern-surfaces, respectively, may be matched together to constitute aunitary symmetrical design composed in part of the design controlled byone of the pattern-surfaces and in part by the design controlled by theother pattern-surface.

The developments of the pattern-surfaces shown in Figsflr') and 1 6 showthe projections llO IIS

and depressions on the pattern-surfaces and show how the periphery ofeach of the six disks composing each of the two spiral pat- Ytern-surfaces is to be formed. As above operated from the cam-shaft fornine eight hundred and ninety-six picks.

stated, with six disks employed to constitute the pattern-surfacerovvision is made with an eighty-tooth ratc et andwith the awl undredand sixty picks, Whereas-the particular pattern shown is intended tooccupy only As this would not involve the full capacity of the six disksshown, the design or repeat does not begin at the beginning of the firstdisk, but instead begins at the point p in Figs. 15 and 16 and extendsonly to the point p in said figures.

The construction and arrangement of the parts may be widely varied inembodying the features of invention and the novel combinations indifferent forms of looms, and I do not intend to limit my invention tothe particular construction and arrangement of devices shown anddescribed.

What I claim as my invention, and desire to secure by Letters Patent,is-

1. In a lappet-loom, the combination, with a needle-bar, of a spiralpattern-surface for controlling the vertical movements of saidneedle-bar, substantially as described.

2. In a lappet-loom, the combination, with a needle-bar, of a spiralpattern-surface for controlling the vertical movements of saidneedle-bar in the production or' an article provided with a lappetdesign, substantially as described.

3. In a lappet-loom, the combination, with a needle-bar, of a spiralpattern-surface for controlling the vertical movements of saidneedle-bar from the beginning to the end of a complete article providedwith a lappet design, substantially as described.

4. In a lappet-loom, the combination, with a needle-bar, of a spiralpattern-surface for controlling the vertical movements, of saidneedle-bar, a member cooperating with said pattern-surface, and meansfor rotating said pattern-surface, substantially as described.

5. In a lappet-loom, the combination, with a needle-bar, of a spiralpattern-surface for controlling the vertical movements of saidneedle-bar, a member cooperating with said pattern-surface, means forrotating said pattern-surface, and means for causing saidcooperatingmember to traverse said spiral pattern-surface, substantiallyas described.

6. In a lappet-loom, the combination, with a needle-bar, of a spiralpattern-surface for controlling the vertical movements of saidneedle-bar, a member cooperating with said pattern-surface, means forrotating said pattern-surface, and means for moving said pattern-surfacewith relation to said cooperating member to cause said cooperatingmember substantially as. described.

to, traverse said spiral pattern-surface, substantially as described.

7. In a lappet-loom, the combination, with a needle-bar, of a spiralpattern-surface for controlling the vertical movements of saidneedle-bar, a memberwcooperating with said pattern-surface, means forrotating said pattern-surface, and lmeans vfor reversing the directionof rotation of said pattern-surface,

8. In a lappet-loom, the combination, with a needle-bar, ot a spiralpattern-surface for controlling the vertical movements of saidneedle-bar, a member cooperating with said pattern-surface, means forrotating said pattern-surface, means for causing said cooperating memberto traverse said spiral patternsurface, means for reversing the rotationof said pattern-surface, and means for reversing the direction oftraverse of said cooperating member, substantially as described.

9. In a lappet-loom, the combination, with a needle-bar, of apattern-head provided with a spiral pattern-surface for controllingY thevertical movements of said needle-bar, a member cooperating with said,pattern-surface, means for rotating said pattern-head, and meanscontrolled by said pattern-head for causing said cooperating member totraverse said spiral pattern-surface, substantially as described.

10. In a lappet-loom, the, combination, with a needle-bar, of apattern-head provided with a spiral pattern-surface 'for controlling thevertical movements of said needle-bar, a pattern-lever Vcooperating withsaid patternsurface, means for rotating said pattern-head, and means formoving said pattern-head with relation to said pattern-lever to causesaid pattern-lever to traverse said spiral patternsurface, substantiallyas described.

1l. The combination of a spiral patternheadloosely mounted on asupporting-arbor, means for rotating said spiral head, and a stationarymember engaging said spiral head, whereby the revolution of said spiralhead will cause it to be moved lengthwise on its 'supporting-arbor,substantially as described.

l2. A spiral pattern-head composed of two or more disks, each disk beingprovided with a pattern-surface in spiral form, whereby when said disksare assembled to form the pattern-head a spiral pattern-surface Will beformed extending from one disk to the next adjacent disk, substantiallyas described.

13. A spiral pattern-head composed of two or more disks, each disk beingprovided With a projecting portion on which a pattern-surface is formed,the projecting portion of one disk being adapted to interlock with theprojecting portion of the next'adjacent disk to form a continuingpattern-surface, substantially as described.

14. In a lappet-loom, the combination,

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with two needle-b ars, of two patt ern-surfaces,

one Afor controlling the vertical movements oi each needle-bar,substantially as described.

15. In a lappet-loom, the combination,

i with two needle-bars, ot two spiral patternsurtaces for controllingthe vertical movements of said needle-bars in the production ot anarticle provided with a lappet design, one ot said pattern-surfacesserving to control the production of a portion ol said lappet design,and the other pattern-surface serving to control the production of theremainder ol" said lappet design, substantially as described.

16. In a lappet-loom, the combination, with two needle-bars, of twospiral patternsurt'aces for controlling the movements ol" saidneedle-bars from the beginning to the end of a complete article providedwith a lappet design, one of said pattern-surfaces controlling` one ofsaid needle-bars lor the production of a portion of said lappet design,and the other pattern-surface controlling the other needle-bar for theproduction ol' the remainder ot' said lappet design, substantially asdescribed.

17. In a lappet-loom, the combination, with two needle-bars, of twospiral patternsurfaces, one for controlling the veitical movement ofeach of said needle-bars, a member coperating with each ol" saidpattern-surfaces, and means for rotating said pattern-surfaces,substantially as described.

1S. In a lappet-loom, the combination, with two needle-bars, of twospiral patternsurfaces, one vfor controlling the movement ot eachneedle-bar, a member cooperating with each of said pattern-surfaces,means for rotating said pattern-surfaces, and means for causing each ofsaid coperatiiig members to traverse its spiral pattern-surface,substantially as described.

19. In a lappet-loom, the combination, with two needle-bars, of twospiral patternsurfaces for controlling the movements of saidneedle-bars, a member cooperating with each of said pattern-surfaces,means lor rotating said pattern-surfaces, and means for simultaneouslymoving said pattern-surfaces with relation to said cooperating membersto cause said cooperating members to traverse said spiralpattern-surfaces, substantially as described.

20. In a lappet-loom, the combination, with two needle-bars, of twospiral patternsurfaces for controlling the movements of saidneedle-bars, a member cooperating with each of said pattern-surfaces,means for rotating said pattern-surfaces, and means for reversing thedirection of rotation of said pattern-surfaces, substantially asdescribed.

2l. In a lappet-loom7 the combination, with two needle-bars, of twospiral patternsurfaces for controlling the movements of saidneedle-bars, a member cooperating with each of said needle-bars, meansfor causing said cooperating members to traverse said spiralpattern-surfaces, means for rotating said pattern-surfaces, means forreversing the rotation ol said pattern-surfaces, and means for reversingthe direction oi traverse of said cooperating members, substantially asdescribed.

22. In a lappet-loom, the combination, with two needle-bars, of apattern-head provided with two spiral pattern-surfaces for controllingthe movements ol! said needlebars, a member cooperating with each ofsaid pattern-surfaces, means for rotating said pattern-head, and meanscontrolled by said pattern-head for causing said cooperating members totraverse said spiral pattern-surfaces, substantially as described.

23. In a lappet-loom, the combination, with two needle-bars, of apattern-head provided with two spiral pattern-surfaces, a pattern-levercooperating with each of said pattern-surfaces, means `for rotating saidpattern-head, and means for moving said pattern-head to cause each ofsaid pattern-levers to traverse its respective spiral patternsurfaces,substantially as described.

24. The combination of a pattern-head loosely mounted on a sup)orting-arbor, said pattern-head being providied with two sets of spiralprojections constituting two spiral pattern-surfaces, means for rotatingsaid pattern-head, and a stationary member engaging one set of saidspiral projections, whereby the revolution of said pattern-head willcause it to be moved lengthwise on its supportingarbor, therebyeliecting a corresponding movement of said spiral pattern-surface,substantially as described.

25. The combination of a pattern-head loosely mounted on asupporting-arbor, means for rotating said pattern-head in oppositedirections, means for moving said pattern-head longitudinally on itssupportingarbor, and means controlled by the longitudinal movement ofsaid head for reversing the direction of rotation thereof, substantiallyas described.

26. The combination of a pattern-head loosely mounted on itssupporting-arbor, a ratchet and double-acting pawl for rotating saidpattern-head, means for moving said pattern-head longitudinally on itssupporting-arbor, and means controlled by the longitudinal movement ofsaid pattern-head for shifting said pawl to change the direction ofrotation of said head, substantially as described.

27. In a lappet-loom, the combination, with a needle-bar, of apattern-surface for controlling the lateral movements of saidneedle-bar, and an independently-operated pattern-surface forcontrolling the vertical movements of said needle-bar, substantially asdescribed.

28. In a lappet-loom, the combination,

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with a needle-bar, of a pattern-surface Jfor controlling the lateralmovements of said needle-bar constructed to reciprocate said needle-barboth in its operative and in its inoperative positions, and anindependentlyoperated pattern-surface for controlling the verticalmovements of said needle-bar and the weaving of the lappet-threads,substantially as described.

29. In a lappet-loom, the combination, with a needle-bar, of apattern-surface for controlling the lateral movements of saidneedle-bar, and an independently-operated spiral pattern-surface forcontrolling the vertical movements of said needle-bar, substantially asdescribed.

30. In a lappet-loom, the combination,

with a needle-bar, of a pattern-surface for controlling the lateralmovements of said needle-bar, and an independently-operatedpattern-surface for controlling the vertical movements of saidneedle-bar, said last-mentioned pattern-surface being caused to advanceat a slower speed than the patternsurface which controls the lateralmovements of the needle-bar, substantially as described.

31. In a lappet-loom, the combination ot' two needle-bars and twopattern-surfaces, one for controlling the vertical movements of each ofsaid needle-bars, one of said pattern-surfacesserving to control theaction of one of the needle-bars to form one portion of a unitary lappetdesign and the other patternsurface serving to control the action of theother needle-bar to form another portion of such unitary lappet design,substantially as described.

32. In a lappet-l'oom, the combination,

I with two needle-bars, of mechanism for holding either of saidneedle-bars against vertical movement without aiecting the verticalmovements of the other needle-bar, substantially as described.

33. In a lappet-loom, the combination, with two needle-bars, of twopattern-sur- Jfaces, one for controlling the vertical movements of eachneedle-bar, and mechanism whereby either needle-bar may be held againstvertical movement without affecting the vertical movements of the otherneedlebar, substantially as described.

34. In a lappet-loom, the combination, with two needle-bars, oi'mechanism Jfor giving vertical movements to said needle-bars, twopattern-surfaces, mechanism controlled by one of said pattern-surfacesfor holding one of said needle-bars against vertical movement, andmechanism controlled by the other pattern-surface for holding the otherneedle-bar against vertical movement, substantially as described.

35. In a lappet-loom, the combination, with two needle-bars, ofmechanism adapted to impart vertical movement to both of saidneedle-bars or to either one of said needlebars independent of theother, substantially as described.

36. In a lappet-loom, the combination, with two needle-bars, ofmechanism adapted to impart vertical movement to both of saidneedle-bars or to either one of said needlebars independent of theother, and mechanism for determining whether vertical movement shall begiven to both of said needle-bars or to either of said needle-barsseparately, substantially as described.

37. In a lappet-loom, the combination, with two needle-bars, ofmechanism adapted to impart vertical movement to both of saidneedle-bars or to either one of said needlebars independent of theother, two patternsurfaces, and mechanism controlled by saidpattern-surfaces for causing vertical movements to be given to both ofsaid needles or to either one of said needle-bars independent of theother, substantially as described.

WILLIAM A. ROBINSON.

Witnesses:

W. H. THURsToN, J. H. THURsToN.

